英语词汇redoubtable的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	redoubtable
词根词缀	词源： late 14c., from O.Fr. redoutable (12c.), from redouter "to dread," from re-, intensive prefix + douter "be afraid of" (see doubt).
随便看	fluvial flux fly fly-by-night flyer fly into a temper Flynn flâneur foal foam fob foci focus fodder foe fog Fogarty fogey foible foie gras foil foist Fokker fold -fold

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